Transcranial Doppler Sonographic monitoring during percutaneous transluminal angioplasty of the internal carotid artery.
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Transcranial Doppler Sonographic monitoring during percutaneous transluminal angioplasty of the internal carotid artery. / Eckert, B; Thie, A; Valdueza, J; Zanella, F; Zeumer, Hermann.
in: NEURORADIOLOGY, Jahrgang 39, Nr. 3, 3, 1997, S. 229-234.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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T1 - Transcranial Doppler Sonographic monitoring during percutaneous transluminal angioplasty of the internal carotid artery.
AU - Eckert, B
AU - Thie, A
AU - Valdueza, J
AU - Zanella, F
AU - Zeumer, Hermann
PY - 1997
Y1 - 1997
N2 - Our purpose was to assess the haemodynamic changes in the ipsilateral middle cerebral artery (MCA) during and after percutaneous transluminal angioplasty (PTA) of the internal carotid artery (ICA), and to compare them with clinical and angiographic findings. Transcranial Doppler Sonographic monitoring (TCD) of the MCA was performed during PTA in 22 patients with symptomatic severe stenosis of the ICA. Mean blood flow velocity (MBFV) and pulsatility index (PI) were recorded. During PTA, MBFV fell from 41 +/- 15 cm/s to 23 +/- 11 cm/s (P = 0.0001). Changes in PI were inconsistent. With reduction of MBFV of 50% or less (in 10 cases) no complication occurred. With a reduction of more than 50% (in 12), 6 patients developed neurological disturbances (transient ischaemic attacks in 5 and minor stroke in 1). This difference was significant (P = 0.0152). Symptomatic patients also had a higher rate of stroke prior to PTA (4/6) than patients who remained asymptomatic during PTA (0/6). After PTA had been performed MBFV and PI improved significantly (P = 0.0001), MBFV increasing to 48 +/- 16 cm/s and PI from 0.64 +/- 0.11 to 0.86 +/- 0.15. TCD changes proved more sensitive to cerebral haemodynamics than angiography in 8 patients.
AB - Our purpose was to assess the haemodynamic changes in the ipsilateral middle cerebral artery (MCA) during and after percutaneous transluminal angioplasty (PTA) of the internal carotid artery (ICA), and to compare them with clinical and angiographic findings. Transcranial Doppler Sonographic monitoring (TCD) of the MCA was performed during PTA in 22 patients with symptomatic severe stenosis of the ICA. Mean blood flow velocity (MBFV) and pulsatility index (PI) were recorded. During PTA, MBFV fell from 41 +/- 15 cm/s to 23 +/- 11 cm/s (P = 0.0001). Changes in PI were inconsistent. With reduction of MBFV of 50% or less (in 10 cases) no complication occurred. With a reduction of more than 50% (in 12), 6 patients developed neurological disturbances (transient ischaemic attacks in 5 and minor stroke in 1). This difference was significant (P = 0.0152). Symptomatic patients also had a higher rate of stroke prior to PTA (4/6) than patients who remained asymptomatic during PTA (0/6). After PTA had been performed MBFV and PI improved significantly (P = 0.0001), MBFV increasing to 48 +/- 16 cm/s and PI from 0.64 +/- 0.11 to 0.86 +/- 0.15. TCD changes proved more sensitive to cerebral haemodynamics than angiography in 8 patients.
M3 - SCORING: Zeitschriftenaufsatz
VL - 39
SP - 229
EP - 234
JO - NEURORADIOLOGY
JF - NEURORADIOLOGY
SN - 0028-3940
IS - 3
M1 - 3
ER -
